So, because I like crunchy math estimations, like to look at things realistically, and hate myself in equal parts, I did some estimations based on the above prerequisites.
Assuming a prerequisite cost of 4 column and 25 high magic in each school, purchasing the required skills (including educated, first aid, healing arts, and read magic)would cost 461 build, (assuming no racials interacted with any of those skills).
For a brand new character, who took advantage of buybacks to start the game at 45 build, it would take roughly 576 blankets from that point to get to 461 build.
Assuming the person were able to make lightning strike and had goblin stamps/dragon stamps to make it happen, a person could make 128 blankets per year (2 per weekend x 52 weeks a year plus 12 monthly goblin blankets and 12 monthly dragon blankets). At this rate, the prerequisites listed above could be met in a mere 4.5 years of continuous play.
Ouch.